当代科技英语文选PDF电子书下载

2．A Wall Built along the Hillside 2

3．The Song of the Humpback Whale 3

1．A Biological Clock 4

4．Disputes about Animal Tests 4

5．What Made Them Geniuses? 5

6．How the Wasps Attack the Beetles 6

7．Chronic Fatigue Syndrome 7

8．Pollution in Antarctica 8

9．In Search of Planets outside Our Solar System 9

10．Was Robert Peary the First Person to Reach the North Pole? 10

11．Can Paper Last a Long Time？ 11

12．In the World of Ants 12

13．Phobos I and Phobos Ⅱ 13

14．Underground Drip Irrigation 14

15．A New Birth Control Vaccine 15

16．Research Balloons 16

17．Smokeless Cigarettes 17

18．The Airborne Arctic Stratospheric Experiment 18

19．A Computer Virus 19

20．The Monarch Butterfly 20

21．The Reuse of Irrigation Water 21

22．Beekeeping 22

23．Superconductive Materials 23

24．Biological Control for the Cassava Hornworm 24

25．Extremely Small Machines 25

26．The Fate of Smokeless Cigarettes 26

27．Sunspots 27

28．How Rhinoviruses Invade the Body 28

29．How to Make a Simple Microscope 29

30．Five Days in an Experimental Glass Building 30

31．Manic Depression 31

32．Fighting Air Pollution 32

33．Sensitive Corals 33

34．Pluto s Atmosphere 34

35．Bagasse Feed 35

36．Solar-powered Refrigerators 36

37．Conservation Reserve Program 37

38．Developing New Techniques to Find Problems in Older Planes 38

39．High-definition Television 39

40．Choose Your Crops 40

41．Another Season of Exploration in Antarctica 41

42．International Center for Tropical Agriculture 42

43．The Ant Man 43

44．New Findings about How Genes Work 44

45．Hubble Telescope and the Moon Telescope 45

46．Natural Farming 46

47．Hypothermia 47

48．A Comprehensive Utilization of Azolla 48

49．National Research Council 49

50．Even Young Children Can Learn a Great Deal 50

51．Rooftop Gardens 51

52．Hearing Loss 52

53．The Supply and Demand of Natural Materials 53

54．Urinary Incontinence 54

55．The Tanzania Oil Press 55

56．Cures for Environmental Problems 56

57．Rabbit Waste 57

58．New Kinds of Rice 58

59．Testing a New Way of Growing Bamboo Plants 59

60．The Dangers of Low Amounts of Radiation 60

61．Global Warming 61

62．Is Asbestos a Health Threat? 62

63．A Simple Earth-moving Device 63

64．New Rules Governing Food Products 64

65．How to Reduce Hunger 65

66．Biotechnology 66

67．Waterweeds 67

68．US7 68

69．Tuna Fish and Dolphins 69

70．Bicycle Centers 70

71．Ectopic Pregnancies 71

72．The Mysterious Flowing Sand 72

73．Research on Type One Diabetes 73

74．The Influence of Light on the Human Body Clock 74

75．Customs at New Year s Day 75

76．Treating Food with Low-level Radiation 76

77．The African Dust and Amazon Soil 77

78．The Map of the CD4 Protein 78

79．Geologists New Idea 79

80．A Man-made Kind of Photosynthesis 80

81．Useful Lessons Drawn from the Wheeled Tool Carrier 81

82．A New Way of Producing Electricity 82

83．American Peanut Production in 1991 83

84．Ethanol:A Clean and Cheap Fuel 84

85．How to Fool the Trees 85

86．Eager Beaver 86

87．How Researchers Get the Rare Things They Study 87

88．Is the Biosphere Project a Success? 88

89．A Robot Will Explore the Mysteries of a Volcano 89

90．The Explosion of Mount Pinatubo Affects the World s Weather 90

91．Cover Crops 91

92．The X30 Space Plane 92

93．The Main Reason People Get Fat 93

94．Using Animal Organs for Transplant Operations 94

95．Protect the Health of Pregnant Women 95

96．Rain Forest Exhibits 96

97．Genetically-changed Animals 97

98．The Buffalo 98

99．A New Plan to Vaccinate American Children 99

100．For the Benefit of Deaf Children 100

GLOSSARY 101